Keyless lock



De@ 27.1927. A 1 1,654,440

A. T. WRREN KEYLESS LOCK med Feb. 2o. 192s 2 sheets-snee: 1

.Hl'fred l' farfelu mroRNEYs Det-27; 1927.

A. 1'. WARREN y xnvnsss Loca 'Filed Feb. 2 0. 192e 2 .sheets-sneeze l I i 'III/l lllIllllllllll ATTORNEYS liatentetl Dec. 27, 1927.

UNITED STATES PATENT oFFicE.

ALFRED T. WARREN, F NEW YORK, N. Y.4 A

KEYLEss Loox.

Application led February 20, 1926. Serial No. 89,688.

This inventionpertains to locks and has i of akey and eliminatesgthe trouble or inconvenience .connectedwith key-act-uated locks.

More specifically the invention comprehends a'keyless lock including abolt, and means 'for releasing the bolt consisting of a tripfor moving the `bolt to released posilion, an actuator adapted to engagewith and move the trip `to effect the release of' the bolt, and an'improved in eans for necessitat-v ing 'the rotation of said actuator prede-w `termined distances in opposite directions from a given starting point to reach the point of operative engagement with the trip. l

The invention furthermore contemplates a keyless lock' including a bolt-releasing fio mechanism which is subject to a practically unlimited variation of the combination of movements, to effect the release of the bolt,

thereby insuring the users `against duplication of the combination movements.

The invention as a further object aims to provide a manipulating means which practically eliminates the possibility of breakage especially when the device is adapted las a lock for trunks which are obviously subjected to rough usage.- With the above recited and other objects in view, reference is hadto the following specification and accompanying drawings in whichvthere is exhibited one example or embodiment of the invention which is in noway intended as a limitation upon the scope of the appended claims as it is to be clearly understood that variations and modifications which properly fall within the scope of said claimsmay be resorted to when found expedient.

In the drawings- .Figure 1 is a front View of the lock in locked condition;

Fig. 2 is a sectional view taken approximately on the line 2--2 of Fig. 1;

Fi 3 is a sectional view taken approximate y on the line 3-3 of Fig. l;

Fig. 4 is a rear view of the lock with the cover plate removed;

Fig. 5 is a similar view therethrough taken approximately on the line 5-5 of Fig. 4;

Fig. 6' is a rear view of the lockA with the actuator plateremoved and illustrating the actuator element inthe initial starting point position engaging the stop;

Fig. 7 is a similar viewl illustrating the actuator element during its passage through one of the passageways;

Fig. 8 is a similar-view with parts in section and illustrating the actuator element en aging the trip lock and retracting the bo ts;

Fig-9 is an inner face view of the rear cover plate; Fi-g. 10 is a perspective view on the manipulating element removed from the lock.

Referring to the drawings, by characters of reference, the lock, ldesignated generally by`A is carried by the Afree end of a hasp B, pivotally attached, as at C, to a base D,

secured t0 the trunk body E. The lock A is of lsubstantially cylindrical formationand is designed to be received in a keeper F the trunk cover or lid G.

The lock A consists of a body 10, which is formed with circular concentric recesses l1 and 12 in its opposite faces, joined by a concentric axial bore 13. The body 10 is further provided with one or more radial inwardly extending bores A14in its periphery, in each of which a bolt 15 is mounted for sliding movement, and between the in- Each bolt is provided with a pin 19 which projects through a slot 20 in the body exten ing longitudinally of the bore 14 and establishing communication with the recess 11 so that the free end of lthe pin projects into the recess. The lock will hereinafter be described as one provided with a pair of bolts 15, although it is tobe understood that one or more bolts may be employed without affecting the scope of the invention.4

Alever2lgis fulcrumed at 22 on the inner wall of the recess 11 and one arm 23 of the leverv engages the outer face of the pin 19 of the bolt 15 so that radial outward swinging movement of the opposite arm 24 of the los lever will effect a retraction of the bolt. A similar lever 25 is fulcrumed at 26 to the inner wall of the recess 11, and has its arm 27 engaging the outer face of the pin 19 of the opposite bolt. The remaining arm 28 overlaps the arm 24 of the lever 2 1 so that movement imparted to the lever .21 to re- ."tract the rsbmentioned bolt will simultaneously-eli'ect the movement of the lever 25 and retraction of the opposite bolt.

In order to provide means for swinging the arm 24 radially outward to effect retraction of the bolts, an actuator pin 30 is provided, which pin is carried by an' actuator plate v31.1'otatably mounted in the' recess 11 on the squared reduced end 32 of the shank 33 of a manipulating disk 34. The manipu- .latino' disk is arranged in the outer recess 12 withits shank 33 extending through the axial bore 13 and with the squared end projecting into the recess 11'. The actuator disk i 1s maintained in place on the squared end 32 by a nut 35 threaded on the threaded re-` ducedv extremity 36 ofthe squared end 32. The actuatorpin is mounted in a radial slot 37 in the plate 31 and is normally urgedV radially outward by suitable means, such as a spring 38. ln order to guide the actuator pin 30 in its'movements and to guide the ,initiated operatorl in bringing the actuator pin into operative engagement with a trip ug 39 formed on the lever arm 24, a concentricv spaced series of substantially circular walls 40, 41, 42and 43 are formed on and project rearwardly from the inner end wall of the recess ll, which walls dene, respectively, therebetween guide grooves 44, 45 and.

39 is formed with a cam face and 53 establishing communication between the guide grooves4 45 and 44. rllhe passage- -way 49 is normally closed by an outwardly opening closure 54;y which is in the nature of a spring tongue normally adapted to swing inwardly to a closed position. The passageway 51 is normally closed by an outwardly opening closure 55 in the ,nature of a spring tongue normally tending to spring to aninwardly lclosed position. An arcuate spring element 5 6 is connected to the wall 42 and normally extends Vradially outward at an angle from the passageway 50 in the wall 42 through 'the passageway 53 in the a -substantially radially dis-v wall 41 and into engagement with the inner periphery 'of the outer wall 40. The outer wall 40l is provided with a slotl or recess 57, through which the terminal of an arm 58 slightly protrudes, said arm 58 being divided at 59 and provided with an integral second arm 60 lying outside of the outer Wall 40, the purpose of which will hereinafter appear.

In order to rovide a definite starting point from which 'they actuatorV pin `starts when manipulating the lock, a stop element 61 is provided in the inner groove 46, said stop element being preferably in the nature of a screw which is threaded into one of a series of threaded openings 62 in the inner wall of the innermost groove 46, this screw 6l being selectively arranged in the series of threaded openings 62. for the purpose of varying the combination of movements necessary to bring the actuator4 pin to its destination where it will operatively engage the cam face 47 at its point of intersection with the outer groove 44.

rlhe rear recess 11 isl enclosed by a cover plate 63 which in addition to concealing and protecting the elements within the recess, is formed with a circumferentially spaced series of notches or teeth 64 with which the knob 65 of a springarm 66 is adapted to coact. The arm 66 is secured to the actuator disk' 31 so that the operator in manipulating the lock may gage either by the sense of hearing or touch, the degrees of turning movement ofthe actuator pin from the start.- ing point lwhere it is in engagement with the stop element61.

' In use and operation when the lock is in a lll() the stop 61 which the initiated operator will know to be the definite startingpoint and which stop will necessarily be engaged by `the' actuator pin irrespective of its position,

providing the vknob is turned to the left. i

From this position the operator will turn the manipulating disk 34 tothe right, predetermined distances gaged by the number of its teeth which the knob 65 will indicate, so that the actuator pin `is brought into alinement with the free end of the closure tongue 54 of the passageway 49. At this point the spring 38 being of a greater tension than the spring tongue closure 54, will open the closure, 54 radially outward land enter the guide groove 45. operator then turns the manipulating disk to the llett thev predetermined number of notches which will dispose the actuator pin The initiated Imovement in this direction.

30 in alinement with the passageway 51. The operator then turns the manipulating disk in. the opposite direction to the right the required number of notches. to cause the actuator pin under Ithe tension of the spring 38, to swing the closure tongue 5o radially outward so' that said actuator pin passes through' the passageway .51 into the outermost groove 44. A reverseturning movement of the manipulating disk 34 to the left the required number ot notches will obviously bring the actuator pm into operative engagement with the cam face 47 of the trip lug 39 so that the lever arms 24 and 28 will simultaneously swing outwardly to- 'effect the retraction of the bolts 15.

From the foregoing it is obvious that an uninitiated operator in attempting to manip-4 ulate the lock to open the same, will be confronted with many diiiculties: (l Presuming the actuator pin is 1n the position illustrated in Fig. 6, iflie turns the manipulator disk too'far so-that the actuator pin after passino through the passageway 49 registers with tlhepassageway 52, the said actuator pin will be ,forced into the outermost groove 44; and (2) if hecontinues to turn to the right the pin will flex and pass the arcuate closure element 56 and abut the right-angular face 48 of the trip lug. If he turns in a reverse direction after meeting this 'diculty, the arcuate element 56 will -guide the actuator element back int-o the inner groove 46. Presuming 'the `operator should after manipulating the lock to bring the actuator pin into the outer groove 44 through the' passageway 52, attempt to turn to the left, the actuator pin riding under the influence of the spring 38 on the inner periphery of the outer wall 40 will engage the terminal of the arms 58"which wouldfbe swung to the dotted-line position and prevent a further It is further obvious that in event the uninitiated -operator gets the actuator pin in the groove 45 and turns tooi'ar to the left so that-tlie pin is brought into contact with that porion of the cam face 47 which exends into the groove 44, the arms wouldbe partially moved out-v waidly until the pin passed beyond the end face 48 which would prevent turning movement of the same to the right and of necessity the pin would have to be moved outwardly in the same direction where it would be guided into the end guide groove 46. In event the uninitiated operator should, after properly. -ina-nipulating the lock, get the actuator pin through the passageway 5l and into the outer groove44, but should continue to turn ,to the right beyond the arm 58, proper manipulation of the lock. to release the same would be frustrated as the only way in which the actuator pin could be moved again into the outer groove 44,' to a proper position to engage lthe camface 47,

would be by returning to the center guide groove.

Resetting of the lock after the saine has been opened is accomplished by turning the manipulating disk to the left so that the actuator pin 30 rides completely over thc cam face 47 and beyond the end face 48V may be varied by changinv either the position of the stop screw (5l, tie position of the passageways 49 and'l, or by inverting the direction of operation by reversing the arrangement of the elements. Under this construction it is obvious that a practically un limited number of combinations may be ein ployed to prevent duplication. It will further be noted that the manipulating disk 34 'has its outer aceiiush with, or, if desired,

slightly within the outer face of the lock body so that possibility of breaking or other damage thereto is reduced minimum.

What is claimed is:

l. A keyless lock,I including a bolt, and l means for moving the vsame to an unlocked position, con'iprising a pivoted arni operatively associated with the bolt and having a trip lug formed with a cani face, a concentric series of circular Walls 'defining tlierebetween guide grooves or channels, the outcrto an absolute v most groove or channel being transversely inl tersectcd by the trip lug, the intermediate walls having circumferentially spaced 'openings constituting passaveways establishing communication between the adjacent grooves, outwardly swingable normally closed gates forsai'd passageways, a pin movable in the grooves and engageable with the cam face of the trip lug when moved in one direction in the outer groove for actuating the trip lug to move the bolt to an unlocked position, means for normally urging the pin radially outward to cause the same to swing the gates outward when moved into engagement with the free ends thereof whereby to enter the,

next adjacent outer groove, and a4 stop element inthe inner groove with which the pin engages to constitute a starting point for the .operation of the lock.

2. A keyless lock, including a bolt, and means for moving the same to an unlocked position, comprising a pivoted arm lopera- `tively associated with the bolt and having a trip g formed with a cam face, a concentric series of circular Walls, defining therebetween guide grooves or channels, the outermost groove or channel being transversely intersected by the trip lug, the intermediate walls having circumferentially `spaced openings ion constituting passageways establishing com- 'munication between the adjacent grooves,

outwardly swingable normally closed gates for said passageways, a pin movable in the grooves and engageable with the cam face of the trip when moved in one direction in the outer` groove for actuating the trip-lug to move the bolt to an unlocked position, means `for normally urging the pin radially outward to cause the same to swing the gates outward when moved into engagement with the free ends thereof, whereby to enter the next adj acentyouter groove, and a circumferentially adjustable stop element in the inner groove with which the pin engages to constitute a starting point for the operation of the lock.

3. A'keyless lock including a casing, a spring-pressed bolt normally projected therefromto a l'ocked'position and mechanism for retracting the bolt to an unlockedl position comprising' a pivoted arm operatively engage ing the bolt and having a cam face, a series of concentric annular guide Ways the outer one of which is intersected by the cam face of the arm, said guide ways having circumferentiallyfspaced communicating passage ways, a circumferentially and radially mov; able actuator member normally positioned in the inner-most guide Way and normally urged outwardly whereby upon proper rotation in opposite'directions the same is moved outwardly through the passages to the outermost guide way for engaging the cam face and tripping the arm to retract the bolt.

4. In a lock having a spring-pressed normally projected bolt, mechanism for retracting the bolt including an varm o eratively associated with the bolt, means eining a series of concentric annular guideways, the outer end of which is ntersected by said arm, the said guideways having oircumferentially spaced communicatin passages, and a cireumferentially and ra ially movable actuator element normally positioned inthe innermost guideway and normally urged outwardly wherebyupon proper rotation in o posite directions the same is moved outwar ly through the passages to the outermost guideway for engagement .with the arm to eiiect the retraction of the bolt.

5.y In a lock having a spring-pressed normally projected bolt, mechanism for retracting the bolt including an arm o eratively associated with the bolt,`means elining a series of concentric annular guideways, the' outer end of which is intersect'ed by said arm, the said guideways having circumferentially spaced communicating passages, and a. circumferentially and radially movable actuator element normally positioned in the innermost guideway and normally urged outwardly whereby upon proper rotation in ogposite directions the same is moved outwar ly through the passagesto the outermost guideway for engagement withv the arm to effect the retraction of the bolt, the innermost guideway having a crcumferentially adjustable stop element with which the actuator element is engageable t0 constitute a starting point for the operation of the lock.

' ALFRED T. WARREN. 

